If one recalls, vagaries had anticipated a "deepening " of the upper air axis by sunday, and precipitate heavy rains along its line. Well, deepened it has, but, the axis has moved a bit more to the North than expected, and as per the IMD special bulletin, "it passes through north Arabian Sea, south Gujarat, north Maharashtra, south Chattisgarh, Orissa."
And consequently the rainfall has moved into Gujarat, and is spreading into adjoining Sindh region. Precipitation is seen all along the axis to the East (see image above).
I would estimate rainfall intensity reducing in Mah. and increasing on Monday towards West M.P. and North Gujarat and, again, specially Kutch.
Rains have already spread into Kutch.
Karachi may now get its rains sooner than expected, maybe from Monday evening ? In fact, Karachi was hot and stuffy on Sunday, with the temperatures ranging between 34c and 28c.